Marine Biology Commons^™

Number 17 (December 1987), Southern Fishes Council

Southeastern Fishes Council Proceedings

(December 1987) - Morphometric and Meristic Characteristics of a Peripheral Population of Enneacanthus. By M.S. Peterson and S.T. Ross, 4 pp.

Ecology of the Muscadine Darter, Percina sp. of. P. macrocephala, in the Tallapoosa River, Alabama, with Comments on Related Species. By W. Wieland and J.S. Ramsey, 7 pp. plus News Notes.

Morphometric And Meristic Characteristics Of A Peripheral Population Of Enneacanthus, Mark S. Peterson, Stephen T. Ross

Southeastern Fishes Council Proceedings

No abstract provided.

Ecology Of The Muscadine Darter, Percina Sp. Cf. P. Macrocephala, In The Tallapoosa River, Alabama, With Comments On Related Species, Werner Wieland, John S. Ramsey

Southeastern Fishes Council Proceedings

No abstract provided.

Regional Sfc Reports, Southeastern Fishes Council

Southeastern Fishes Council Proceedings

No abstract provided.

News Notes, Southeastern Fishes Council

Southeastern Fishes Council Proceedings

No abstract provided.

Business Meeting Minutes, Southeastern Fishes Council

Southeastern Fishes Council Proceedings

No abstract provided.

A Development Plan For The South Coast Inshore Trawl Fishery, Fisheries Department Of Western Australia

Fisheries management papers

In March 1986 discussions were commenced between officers of the Fisheries Department and the Australian Fisheries Service concerning management measures for trawl fishery in the Great Australian Bight. These measures were considered necessary as a Western Australian Company (Toskel Fishing Co.) had commenced fishing the area. Given the excess fishing capacity in other Australian trawl fisheries it was considered advisable to institute management at an early stage and control development of this deep water fishery. Concurrent with these developments, mainly directed towards the control of larger trawlers in deeper waters, several small Western Australian trawlers operating out of Esperance and …

The Harpswell Laboratory 1898-1920: A Marine Biological Station, Mary Francis Williams

Maine History

This article reviews the founding and history of The Harpswell Laboratory, A Marine Biological Station

Vims Newsletter, Virginia Institute Of Marine Science

Miscellaneous

• Bay Eagle
• Aircraft overhaul
• Visiting Scientist Program
• Van Engel fellowship
• Unrestricted gifts, donated equipment
• Donation of marine models for aquarium
• Shell donation
• Varied donations noted
• John Zeigler memorial note
• VIMS reorganization

Effects Of A Dispersed And Undispersed Crude Oil On Mangroves, Seagrasses And Corals, T. G. Ballou, Richard E. Dodge, S. C. Hess, A. H. Knap, Thomas D. Sleeter

Marine & Environmental Sciences Faculty Reports

The primary objective of this study was to evaluate the application of dispersant to spilled oil as a means of reducing adverse environmental effects of oil spills in nearshore, tropical waters. The results of numerous laboratory and field studies have suggested that dispersants may play a useful role in reducing adverse impacts on sensitive and valued environments such as mangroves, seagrasses, and corals. However, the use of dispersants has not been allowed thus far in most situations because of a lack of direct experimental data on the various effects of dispersants and the environmental trade-offs presumed to occur as a …

Phytoplankton Dynamics In The Very Low Salinity Region Of The James River Estuary, Virginia, U.S.A., Changho Moon

OES Theses and Dissertations

During summer and autumn discharge from the James River estuary, Virginia, was less than 120 _m³sec^-1. There was a peak phytoplankton biomass in the very low salinity region (defined as the location where surface salinity measured less than 0.5$ 0/00) and this peak represented five to ten times greater biomass than adjacent waters. The peak biomass occurred independent of the tidal state and the location of nutrient inputs. It disappeared during winter and spring, and nutrient limitation was not responsible for the low phytoplankton biomass, indicating there were physical, not chemical controlling factors.

The peak biomass …

Molting In The Mature Female Blue Crab, Callinectes Sapidus, Rathbun, Kirk J. Havens

OES Theses and Dissertations

The present study examines the hypothesis that mature female blue crabs, Callinectes sapidus, do not have a terminal anecdysis. Induced molting via eyestalk ablation, size frequency distributions and gonad and limb regeneration indices from field collected animals are used as indicators of potential post maturity molts.

Eyestalk ablation of mature females resulted in ecdysis approximately 51 days after ablation, indicating a physiological ability if mature females to complete ecdysis. Analysis of size frequency distributions indicates two distinct shifts from smaller to larger females, one in early spring and a second in early fall. While migration of larger females into …

Report Of The Rock Lobster Industry Advisory Committee To The Hon. Minister For Fisheries., Rock Lobster Industry Advisory Committee

Fisheries management papers

The Committee recognises that the exploitation rate on the rock lobster stocks is very high and that this factor is a major importance in formulating the advice on management measures. However, the Committee also recognises the high level of capital investment in the industry and that any recommendation which leads to a significant change in the management rules is likely to have a far reaching effect on many of the participants. Accordingly, the Committee endeavours to reduce to a minimum the year to year changes in the management rules. When changes are required the Committee places considerable weight on matters …

Written Communications In Fishery Science, Management, Techonology, And Advisory Services Produced By Personnel Of The Virginia Institute Of Marine Science During The Years 1940-1987, Frank J. Wojcik, William J. Hargis Jr.

Reports

No abstract provided.

The Shark Bay Scallop Fishery: Discussion Paper, L. M. Joll

Fisheries management papers

Studies of the biology of the saucer scallop Amusium balloti in Shark Bay show that it is a highly fecund, broadcast spawner, with a long breeding season (from April to December). It is also a fast growing species, with the bulk of the recruits from a breeding season reasing fishable size by April/May of the next year, at which time they also enter their first breeding season. In recent years, however, the earlier part of the breeding season appears to have been the most important for production of recruits.

Ecology Of Sea Turtles In Virginia, Sarah A. Bellmund, John A. Musick, Ruth Ellen C. Klinger, Richard A. Byles

Reports

No abstract provided.

Further Options For Management Of The Shark Bay Snapper Fishery : Discussion Paper., P. Millington

Fisheries management papers

A limited entry fishing regime for snapper was introduced in Shark Bay in order to constrain growth in fishing effort. Additional measures were introduced to reduce the number of vessels in the fishery, control areas fished and limit permitted fishing gear, with the ultimate objective of reducing catches from traditional fishing areas to long term sustainable levels.

Water Quality In A Virginia Potomac Embayment: Neabsco Creek, Paul V. Hyer, Albert Y. Kuo

Reports

No abstract provided.

Growth Rate Of Stony Corals Of Broward County, Florida: Effects From Past Beach Renourishment Projects, Richard E. Dodge, Broward County Erosion Prevention District Environmental Quality Control Board

Marine & Environmental Sciences Faculty Reports

The skeletal growth of hermatypic (reef-building) corals is a sensitive indicator of environmental conditions and perturbations. In particular, excessive sedimentation and turbidity act to depress coral growth because energy expenditure is required to remove sediment and because turbidity reduces light energy necessary for coral health and nutrition.

Normalized annual growth (linear skeletal extension) rates of Broward County, Florida reef-building corals were over 16 years (1985-1970). Star corals (Montastrea annularis) and brain corals (Diploria labyrinthiformis) were collected from each of four reef sites at two depths (9m and 18m). Collection areas were located in the vicinity of …

Salinity Distribution In The James Estuary, Julie G. Bradshaw, A. Y. Kuo

Reports

No abstract provided.

Development Of An Index Of Juvenile Striped Bass Abundance For The Chesapeake Bay System: I. An Evaluation Of Present Measures And Recommendations For Future Studies, James A. Colvocoresses, Herbert M. Austin

Reports

No abstract provided.

Distribution And Molecular Weight Of Dissolved Dna In Subtropical Estuarine And Oceanic Environments, Mary F. Deflaun, John H. Paul, Wade H. Jeffrey

Marine Science Faculty Publications

Dissolved DNA and a series of microbial biomass and activity parameters were measured in offshore, coastal, estuarine and coral reef environments of the southeast Gulf of Mexico. Oceanic concentrations of dissolved DNA ranged from 0.2 to 19 μg 1^-1 and decreased as a function of distance from shore and depth in the water column. Dissolved DNA concentrations were greater than half the particulate DNA content in offshore environments (̄x̄ = 63 ± 45 %) but were a smaller percentage of particulate DNA in nearshore and estuarine environments (̄x̄ = 35 ± 21 %). Dissolved DNA correlated better with bacterial …

Velocity And Temperature Observations During The Seasonal Response Of The Equatorial Atlantic Experiment At 0 Degrees, 28 Degrees W, Robert H. Weisberg, J. H. Hickman, T. Y. Tang, T. J. Weingartner

Marine Science Faculty Publications

Continuous 2.7‐year time series of upper ocean currents and temperature at 0°, 28°W collected during the Seasonal Response of the Equatorial Atlantic Experiment are presented. The thermocline underwent distinctive annual cycles in response to forcing by the surface wind stress, and the core of the Equatorial Undercurrent tracked the thermocline. While the vertical position of the thermocline and the undercurrent appear to be simply related, the transport of the undercurrent did not show a replicating annual cycle, and the speed at the undercurrent core remained relatively constant. Near surface flow when averaged over the 2.7 years was not statistically different …

Uptake And Internal Distribution Of Exogenously Supplied Amino Acids In The Pacific Oyster, Crassostrea Gigas (Thunberg), Michael A. Rice, Grover C. Stephens

Michael A Rice

A technique is described in which irrigation of the mantle cavity of oysters, Crassostrea gigas, induces pumping at steady rates. Simultaneous net influx of 10 amino acids (asp, glu, asn, ser, gly, tau, ala, val, phe, lys) is observed by high-performance liquid chromatography (HPLC). Individual amino acids exhibit first-order exponential depletion from an initial medium concentration of 2.0 μM. Influx of radiolabeled alanine corresponds very closely to net entry of alanine as estimated by HPLC. Therefore, net entry of alanine from dilute solution (5 μM) occurs. The entry of alanine is well described by Michaelis-Menten kinetics with a maximum influx …

M2 Tidal Currents In The Eastern Equatorial Pacific Ocean, Robert H. Weisberg, D. Halpern, T. Y. Tang, S. M. Hwang

Marine Science Faculty Publications

Current meter measurements recorded over the water column at 10 depths ranging from 20 m to 3027 m using surface and subsurface moorings near 0°, 110°W are analyzed for the M₂ tidal current over a 10‐month sampling interval. A kinematical description is given by month and depth, followed by a decomposition into a barotropic mode and three baroclinic modes. The barotropic tide was dominant, and its hodograph was stable over the 10 months sampled. The baroclinic tide was random, isotropic, and without mode preference.

Further Studies On The Response Of The Equatorial Thermocline In The Atlantic Ocean To The Seasonally Varying Trade Winds, Robert H. Weisberg, T. Y. Tang

Marine Science Faculty Publications

Upper ocean temperature data obtained during the Seasonal Response of the Equatorial Atlantic experiment and the Francais Ocean et Climat dans l'Atlantique Equatorial program are used to describe the variations of the thermocline observed along the equator from February 1983 to September 1984. In response to rapid seasonal changes in zonal wind stress, the thermocline underwent sequences of upwelling followed by downwelling or conversely, depending upon whether the winds were intensifying or relaxing. These sequences increased systematically in magnitude and duration to the east. Both the sequential behavior and its zonal inhomogeneity represent departures from the slowly varying and in-phase …

Population Dynamics And Habitat Partitioning By Size, Sex, And Molt Stage Of Blue Crabs Callinectes Sapidus In A Subestuary Of Central Chesapeake Bay, Anson H. Hines, Romauld N. Lipcius, A. Mark Haddon

VIMS Articles

Abundances, size-frequency distributions, sexual composition and molt-stage composition of blue crabs Callinectes sapjdus were measured during 1983 to 1985 in the Rhode River, a subestuary of central Chesapeake Bay, USA. Crabs at the mouth and head of the river basin were sampled with monthly triplicate otter trawls. Crabs in the principal tidal creek of the river were sampled 3 d a week with a fish weir, which caught crabs moving upstream and downstream separately. Crabs exhibited consistent, marked seasonal cycles in abundance as well as considerable annual variation in July peak abundances. New recruits entered the subestuary in late fall …

Western Rock Lobster Industry Compensation Study. Report To The Rock Lobster Industry Advisory Committee By Arthur Young Services., Arthur Young Services

Fisheries management papers

Terms of reference are outlined in letter dated 11 August 1986. The Fisheries Department seeks to reduce western rock lobster fishing capacity to ensure the long-term viability of the fishery and has asked us to evaluate the financial implications of a number of specific resource management proposals.

New Port Island: An Evaluation Of Potential Impacts On Marine Resources Of The Lower James River And Hampton Roads, Robert J. Byrne Et Al

Reports

No abstract provided.

The American Oyster Crassostrea Virginica In Cheapeake Bay, Dexter Haven

VIMS Books and Book Chapters

The American Oyster (Crassostrea virginica) is widely distributed in Chesapeake Bay where it grows in the intertidal zone to depths of about 6.5 m. The salinity range over which it occurs, is from about 5 to 34 ° /oo. It is most abundant in protected embayments where bottoms are a firm sand-clay mixed with shelly material. This bivalve is a filter feeder, and ingests planktonic material which it strains from the water with its gills. Spawning occurs in Chesapeake Bay from June through September, and the eggs and resulting larvae are widely distributed during their 10-20 day planktonic life.

Growth …